Josiah jo witt



(No Model.) 2 Sheets-Sheet I. J. JOWITT.

WAXING PAPER.

No. 318,911. Patented May 26, 1885.

INVENTOR:

iTNESSES:

(No Model.) 2 SheetsSheet 2.

J. JOWITT.

WAXING PAPER.

No. 318,911. Patentd May 26, 1885.

WITNESSES. 'NVENTORI Ma a. By his hz ifm'neg s, A 4%? 1 af mw 554M1 6Uwrrnn STATES mien.

JOSIAH JOlVITT, QFSTANLEY, N EV JERSEY.

WAXiNG 'PAPER.

SPECIFICATION forming part of Letters Patent No. 318,911, dated May 26,1885.

Application filed October 6, 1884. (X0 model.)

To aZZ whom it may concarw Be it known that I, J OSIAH JOWIT'I', acitizen of the United States, residing at Stanley, in the county ofMorris and State of New Jersey, have invented certain new andusefulImprovements in the Art of and Apparatus for \Vaxing Paper, of which thefollowing is a specification.

This invention involves a method and apparatus for the manufacture ofwaxed paper,or most commonly paraffine coated paper, although theapparatus is applicable to coating or saturating paper and other thinextended fabrics wit-h other substances than wax.

My improved method of waxing paper consists in passing a continuous webof paper into abath of melted paraffiue or other wax, draining the sameof superfluous wax and passing it between opposite cold surfaces,whereby the wax is chilled and set.

My invention also consists of other feature in connection with themethod and apparatus, all of which will be fully hereinafter set forth.

Figure l of the accompanying drawings isa vertical longitudinal sectionof the entire apparatus for practicing my invention. isaside elevationofthe waxing-machine alone, and Fig. 3 is an end elevation thereof.

Let A designate a tank for containing the melted wax,and a a steam-coiltherein for heating the wax.

B 13 arctwo hollow pressure rollers, arranged, preferably, above thetank, and C C are air-pipcs loading to said rollers and communicatingwith their interiors through their hollow journals. I 7

Referring to Fig. 1, D is a blower, which forces air through a pipe, D,into a refrigen,

sting-chamber, E, of any suitable construction, and from this chamberthe pipe 0 leads to the rollers B 1B. Thus the air set in motion by theblower is cooled to a sufficiently low temperature and is passed throughthe rollers B B, thereby cooling them and keeping thein cool.Ateiuperature of about 40 Fahrenheit is preferable for these rollers. Inorder to test the temperature of the air, I apply a thermometer, T, tothe pipes, as seen in Fig. 3.

The refrigerating chamber or device E may be made in many differentways. The construction shown consists of a box or chamber Fig. 2

divided by alternate partitions c 6 into a circuitous passage, throi'ighwhich the air flows back and forth in passing through the chamber, andin each compartment is arranged a flat coil of pipe, F, the three coilsbeing connected by short pipes and the terminals of the upper and lowercoils connecting with pipes ff, which pass out of the chamber and arefitted with suitable valves. These pipes f f will be arranged inconnection with any suitable ice-machine, whereby a current ofrefrigerating vapor or gas will be caused to flow through them in muchthe same manner as is commonl y employed for cooling the vaults ofbrewones.

The means shown for cooling the airis only one of various means that maybe employed for that purpose, and obviously forms in itself no essentialpart of my invention. Any other. suitable and practicable means may beused.

Referring to Figs. 1 and 2, G is the roll of paper to be treated, whichis mounted on rotative bearings. g is the web of paper from this roll,and h h are tension-rollers, around which in succession the web of paperpasses.

In the tank A is an immersed roller, t, be month which the web of paperis carried in order topass it through the melted wax. Above the tank isa hollow roller, which is heated by steam entering it through the pipe7;. The paper passes over this roller, and is heated to cause the wax topermeate it thoroughly. and to cause any excess of wax to be melted andto run back down the web of paper into the tank. From this roller thepaper passes over another roller, Z, and thence between thecold-pressure rolls B 13. The roller Zserves to lift the paper to thelevel of the entrance to the rolls and guide it into them, so that bothrolls shall come in contact with it simultaneously on theinstant of itscom prcssion by them. Thus I avoid the cooling of the paper on one sidefirst and before compression, as would occur were the paper to enter therolls diagonally, and so touch one roller before coming between the two.These cold rollers act to compact the paper, to chill and harden itscoating of wax, and to impart to it a burnished or polished surface. Thechilling of the wax sets it and enables the paper to be immediatelyrolled up without further cooling or drying, and withpaper is wound.

o jected in this machine consists in first causing out any liability ofthe layers to auhere together in the roll.

H is the windingroll on which the waxed This roll is rotated to wind thepaper on it by means of a loose belt or other frictional gearing.

The rollers B B have bearings in frames I I, and may be pressed togetherby screws, springs, weights, or otherwise; but I prefer to press themtogether by compound weighted levers, as shown in Fig. 2. The bearingsof the lower roller are fixed, and over each bearing of the upper rolleris placed a cross-head, m, from which two rods, n n, extend down beneaththe frame I, and are joined by a yoke, p, to the middle of which isconnected a lever, q, and the extremity of this lever is connected through links to another lever, 7*, bearing on its extremity a weight, w.This weight is greatly multiplied in its effect by the levers, and exerts a heavy and steady downward pressure I on the upper roller.

In order to allow for some movement of the rolls B B toward and fromeach other I provide an expansion-joint, E, in the pipe 0, between thebranches leading to the rolls. A scraper, J, is applied to the lowerroll, B, and pressed up against the latter by a weight or spring. Itserves to scrape off any particles of wax that may be squeezed out ofthe paper by the rolls, and to cause them to drop back into the tank andbe remelted.

The heated roller j may be omitted entirely, although it is preferableto employ it, or the functions of the rollers j andt' may be combined byomitting the latter roller and elevating the former to the positionshown in dottedlines atj in Fig. 2.

The manipulation to which the paper is subit to pass into and out of abath of melted wax; second, (by preference,) passing it over a heatedsurface to expel the superfluous wax and more thoroughly incorporatewhat remains; third, passing it between cooled pressure-rolls, therebychilling and hardening the sister;

wax, and, finally, rolling the waxed paper on a means than by passingcooled air through them. For instance, the refrigerating-pipes f maypass axially through them, or the refrigerating vapor or gas may beadmitted into them, or cold water may be caused to flow:

through them instead of air.

I make no broad claim to artificially cooling 1 the waxed paper after ithas received its coating of wax and before it is wound'upor cut intosheets, because I am well aware that waxed paper has been so cooledprior to my invention by means of currents of air; and Iain also awarethat roofing fabrics have been cooled by being passed through waterorhaving wa: ter showered upon them.

I claim as my invention v 1. The improved method of making waxed paper,which consists in passing a web of paper in contact with melted wax, andthence in contact with smooth cold surfaces, where by the wax issimultaneously hardened and burnished, substantially as set forth.

2. The improved method of makingwaxed paper, which consists in passingaweb of paper throughabath of melted wax, then over a heated surface,and then between cold press- 1 ure-rolls, substantially as set forth.

3. The improved apparatus for waxing paper, which consists of thecombination of a tank, A, for containing the melted wax, hol

low pressure-rolls B B, and suitable means, substantiallyas described,for cooling said rolls by passing acold fluid therethrough,substantially as set forth.

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

J OSIA H J O\VlTT. Witnesses:

ARTHUR G. Fnxsnn,

HENRY CONNE'P'I.

